Graphical Root Cause Analysis of Magnetically Induced Vibrations in Synchronous Machines

authored by: Allan De Barros, Amir Ebrahimi, Babette Schwarz, Bernd Ponick
Abstract: Structural vibrations caused by magnetic forces in synchronous machines constitute a multi-domain problem involving both electromagnetic and mechanical phenomena. Recent years have seen an increasing effort in the scientific community to improve the capabilities of the calculation models used to assess this problem. On the one hand, this trend contributes to increasing the accuracy of the calculated results obtained. But on the other hand, the increased complexity of the models tends to make the identification of cause-effect relationships more difficult. In this context, this work proposes a new graphical tool for the comprehensive analysis of stator core vibrations in synchronous machines. The development of a holistic diagram for the root cause analysis of the electromagnetic and mechanical phenomena, called the vibration cause diagram (VCD), is presented and applied to two example machines of different sizes. The analysis method obtained is particularly useful during the design phase of a new machine or for the troubleshooting evaluation of existing machines.
Organisation(s): Institute of Drive Systems and Power Electronics
External Organisation(s): University of Bremen
Voith GmbH & Co. KGaA
Type: Conference contribution
Publication date: 05.07.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Automotive Engineering, Mechanical Engineering, Electronic, Optical and Magnetic Materials, Instrumentation
Electronic version(s): https://doi.org/10.1109/INTERMAGShortPapers61879.2024.10576754 (Access: Closed)

BibTeX

@inproceedings{6fa43f217b4b41d8b172e997f705d5d4,
title = "Graphical Root Cause Analysis of Magnetically Induced Vibrations in Synchronous Machines",
abstract = "Structural vibrations caused by magnetic forces in synchronous machines constitute a multi-domain problem involving both electromagnetic and mechanical phenomena. Recent years have seen an increasing effort in the scientific community to improve the capabilities of the calculation models used to assess this problem. On the one hand, this trend contributes to increasing the accuracy of the calculated results obtained. But on the other hand, the increased complexity of the models tends to make the identification of cause-effect relationships more difficult. In this context, this work proposes a new graphical tool for the comprehensive analysis of stator core vibrations in synchronous machines. The development of a holistic diagram for the root cause analysis of the electromagnetic and mechanical phenomena, called the vibration cause diagram (VCD), is presented and applied to two example machines of different sizes. The analysis method obtained is particularly useful during the design phase of a new machine or for the troubleshooting evaluation of existing machines.",
keywords = "eigenfrequencies, eigenmodes, Electric machines, hydroelectric generator, magnetic forces, root cause analysis, stator, vibrations",
author = "{De Barros}, Allan and Amir Ebrahimi and Babette Schwarz and Bernd Ponick",
note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 2024 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2024 ; Conference date: 05-05-2024 Through 10-05-2024",
year = "2024",
month = jul,
day = "5",
doi = "10.1109/INTERMAGShortPapers61879.2024.10576754",
language = "English",
isbn = "979-8-3503-6222-0",
booktitle = "2024 IEEE International Magnetic Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
address = "United States",
}